The GMD-IPSI XQL engine, a Java based storage and query
application for large XML documents, has been updated to the
first non-beta release 1.0.0. The distribution contains:
1. A full, persistent implementation of the W3C-DOM
2. A full implementation of the XQL language
The download site is http://xml.darmstadt.gmd.de/xql/ .
New Features for PDOM:
- Support for all W3C-DOM operations, including updates and inserts.
- PDOM files are build using SAX events, main memory no longer is a
limit for file size.
- PDOM now includes a fully fledged org.w3c.dom.Document interface.
- The PDOM file can be compressed on the fly, saving disk space.
- The PDOM is thread-safe for read and write access.
- New command line interface for multithreaded benchmarks.
- New public package with DOM utility functions, including:
- pretty-printing XML from a DOM,
- instantiating a DOM from RTF and HTML (requires Swing).
- The Entity_Reference interface is supported.
New Features for XQL:
- Added regression test suite.
- Command line interface improvements:
- Allow user to choose any SAX parser and DOM implementation.
- Option to control whitespace treatment.
- Accept URL and filenames as input source.
- Queries can be posed against HTML, returning XHTML
- Support of name:* in queries.
- Speed improvement for queries involving attributes.
Fixed Defects:
- Greatly improved API documentation.
- Queries of the form //@* and //@name missed parts of the result.
- Subscript, filter and function calls had wrong precedence.
- The jar file for 1.0b1 was not working with JDK 1.2.x.
- Fixed wrong mixed usage of 'current set of reference nodes' and
'search context'.
- Corrected XQL functions end() and index().
- API change: User defined functions are now passed the current
reference node and a set of reference nodes.
- Upgraded to JavaCC 1.0.
- Removed hardcoded dependencies on xml4j.
For further questions or bug reports contact the authors below:
[1] mailto:huck@gmd.de
[2] mailto:macherius@gmd.de